unable to mount last partition in Disk Utility of Yosemite 10.10.1

Question

I am unable to install Yosemite 10.10.1.dmg in intel core i3 Haswell ULT laptop having socket 1168 BGA. I made five partitions with Master Boot Record / Guid Partition Table but the last partition i.e., disk2s6 could not be mounted with name ‘Texts’ after erase. That is why could not install essential.pkg of Yosemite zone.dmg and if it at all gets installed I am getting boot0ss error after installation and unable to view any bootloader icon to boot osx from hard drive.

Please give your valuable opinion why the last partition drive ( whether disk2s6 or s5) could not be mounted with master boot record partition table and why essential.pkg gets stuck at some point of the installation process.